1887

Abstract

Summary

The carbonate rocks exposed in the Irecê (Brazil) are pervasively affected by hydrothermal silicification and dolomitization. These mineralizing events drastically changed the original petrophysical properties of the host rock. In order to understand the role played by deformation mechanisms and tectonic evolution of these carbonates on the ingression of the mineralizing fluids, we focused our study on the mineralogical, petrographic, stratigraphic, structural and geochemical characterization of the faulted Neoproterozoic carbonates of the Salitre Formation, central Brazil. In this contribution, we present the first results of a combined outcrop- to micro-scale investigation of the structural evolution of the fracture network responsible for hydrothermal silicification and dolomitization processes.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.2020622009
2020-02-11
2024-04-25
Loading full text...

Full text loading...

References

  1. Bertotti, G., Audra, P., Auler, A., Bezerra, F.H.R., de Hoop, S., Pontes, C., Prabhakarn, R. and Lima, R.
    [2019] The Morro Vermelho Hypogenic Karst System: stratigraphy, fractures and flow in a carbonate strike-slip fault zone with implications for a carbonate reservoirs.AAPG Bullettin Under revision.
    [Google Scholar]
  2. La Bruna, V., Agosta, F., Prosser, G.
    [2017] New insights on the structural setting of the Monte Alpi area, Basilicata, Italy.Italian Journal of Geosciences, 136, 220–237.
    [Google Scholar]
  3. La Bruna, V., Agosta, F., Lamarche, J., Viseur, S., Prosser, G.
    [2018] Fault growth mechanisms and scaling properties in foreland basin system: The case study of Monte Alpi, Southern Apennines, Italy.Journal of Structural Geology, 116, 94–113.
    [Google Scholar]
  4. Menezes, C.P., Bezerra, F.H.R., Balasamo, F., Mozafari, M., Vieira, M.M., Srivastava, N.K. and de Castro, D.L.
    [2019] Hydrothermal silicification along faults affecting carbonate-sandstone units and its impact on reservoir quality, Portiguar Basin, Brazil.Marine and Petroleum Geology,110, 198–217.
    [Google Scholar]
  5. Mozafari, M., Swennen, R., Balsamo, F., Desouky, H. E., Storti, F., and Taberner, C.
    [2019] Fault-controlled dolomitization in the Montagna dei Fiori Anticline (Central Apennines, Italy): record of a dominantly pre-orogenic fluid migration.Solid Earth, 10, 1355–1383.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.2020622009
Loading
/content/papers/10.3997/2214-4609.2020622009
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error